Symplectic automorphism conjecture for the Albanese kernel of zero-cycles

Let SS be a smooth projective surface. A symplectic automorphism is an automorphism acting trivially on the space of holomorphic two-forms H2,0(S)H^{2,0}(S). It acts on the Albanese kernel CH0(S)alb\mathrm{CH}_0(S)_{\mathrm{alb}} of the degree-zero zero-cycle group. Symplectic automorphism conjecture. Any symplectic automorphism acts trivially on CH0(S)alb\mathrm{CH}_0(S)_{\mathrm{alb}}. This is presented as a special, more tractable case of the preceding correspondence conjecture. The paper's abstract indicates that the claim is proved for the relevant elliptic surfaces except for specified exceptional cases, but the general surface statement is not established in the supplied text.

Sources & referencesView supporting material

Primary source

Jiabin Du and Wenfei Liu, “On symplectic automorphisms of elliptic surfaces acting on CH_0”, arXiv:2103.03052 (2022).

Additional references

2 papers in this index state this conjecture (2013–2021). The statement above is taken from the most recent of them; the others are arXiv:1302.6531.

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